Orelus

Yeah that's exactly that: - Polar watch + Verity Sense for workouts / running - Garmin pedals / monitor for cycling - Withings for the scale And I had to integrate .fit file upload for Zwift / Trainerroad trainings.

I’ve only really had trouble integrating Withings.

Working with Apple was also challenging because I had to purchase an Apple Watch or iPhone (the data is stored locally only, with no server or API to call, which is great from a privacy perspective) and then deploy specific code on the device.

I’m not sure if this helps your use case, but I was planning to make the API public and create a CLI (similar to Sentry or Grafana’s gcx) to access it. But if you want a local first option, not the best solution

I'm a Polar fan, but unfortunately for cycling it's missing devices like the pedals power meter. Withings, only the scale with body measurements.

Then you have friends and family that don't have the same devices than you and are nice enough to want / try your app.

I do calisthenics 3×/week plus Ironman 70.3 prep, which means my training lives across Garmin, Polar, Withings + FIT files and front-lever sessions that no mainstream app models. So I built one that does both (and have been using for the past 4 years+): logs custom strength moves (front lever, FLAC, ¾ pull-ups), aggregates the connected devices (Polar, Garmin, Suunto, Withings, Apple Health) into one weekly view. Currently trying to see if can integrate some AI insights to my training routines. App is free for now as it does not cost me much (only servers for now), comment / use cases welcome: https://obitrain.com/

Can confirm, more features, a breeze to switch.